Sash-fastener



(No Model.)

S. HAINKBL. sAsH FASTEVNBR.

No. 546A23.

latented sept. 17, 1895.

UNITED STATES PATENT OFFICE.

SIGEL IIAINKEL, OF QUINCY, ILLINOIS.

SASH-FASTENER.

sPEcIFIcA'rIoN forming part of Lettere Patent Ne. 546,423, datedseptember 17, 1895.

Application med member 13,1894. sena ne. 531.080. (remodel.)

To all whom it may concern:

Be it known that 1,'SIGEL HAINKEL, of Quincy, in the county of Adams andState of Illinois, have invented certain new and useful Improvements inAntirattler Sash-Locks; and I do hereby declare the following'to be afull, clear, and exact description of the same, reference being had tothe accompanying drawings, forming a part of this specification, and tothe letters of referencemarked thereon.

This invention relates more particularly to that class of sash-lockswhich are adapted for application to the meeting-rails of windows; andit has for its object to provide a lock which will not only prevent theopening of the sashes, but at the same time draw them togethereand givethem a lateral movement in opposite directions, so as to cause them tobind in their guideways and prevent rattling.

The invention consists in certain novel details of construction andcombinations and arrangements of parts, all as will be now described,and pointed out particularly in the appended claims.

In the accompanying drawings, Figure 1 is a perspective view of asash-lock embodying my present invention. Fig. 2 is a top plan view ofthe same with the top of the casing or housing removed to show the hookand its locking-cam. Figs. 3 and 4 are elevations of the fixed memberwhich is usually applied to the upper sash. Fig. 5 is a sectional Viewshowing a modified construction of housing for a hook. Fig. 6 is aperspective view of the hook itself removed from the housing.

Like letters of reference in the several Iigures i idicate the sameparts.

Thekhousing for the hook or movable member is preferably formed by acasting of bronze or other suitable metal and has a flange or base-plateA and covering-plate A above the same and connected therewith by sidepieces a. This construction leaves a clear space between the base-plateand covering-plate adapted for the reception of a hooked member B,usually held by a pivot passing up through the base-plate throughbearings in the hook and into the covering, but not entirel y throughthe same, thus leaving the covering-plate smooth and adapting it for aperfeet and ornamental finish. The tapered hook itself is provided witha handle portion b and a hook portion B', gradually increasing inthickness from its point to its base, as shown, the outer circumferenceof which is struck on a curve, with the pivot C as a center, although itis not essential Vthat it should be absolutely segmental, and itisfurthermore corrugated or toothed, as shown, while'the inner portion of'the hook is cam shaped and provided with an inclined upper surface, thefunction of which will presently appear.

To hold the hook in adjusted position and permit it to be turned so asto lock the windows while preventing its retrograde movement, exceptfrom the inside and by a deliberate intent, a locking-cam D is providedin the housing at one side in position to co-operate with the corrugatedcircular face of the hook. The cam-surface of the cam is 'alsocorrugated, and it is provided with arelasinghandle d and a spring d forholding it in operative position.

The fixed member for cooperating with the hook consists, essentially, ofa base-plate E preferably madeangular, as shown, to embrace and besecured to both faces of the meeting-rail, and an upwardly and laterallyprojecting portion E', the under-cut face of which is cam-shaped, aswill be readily understood by reference to Figs. 3 and 4, the contour ofthis portion of the projection being such as to tit with a reasonabledegree of accuracy the inner inclined cam-face of the hook when the twoparts of the device are turned into locked position, as shown in Fig. 2.In this position, it will be noted, the hook extends around the camprojection on the fixed member, tending to draw the two meetingrails ofthe sash together, and at the same time it exerts a lateral pressurewhich forces the rear sash in one direction and the forward sash in theopposite direction, causing them to bind in their ways in addition tobeing locked together and thereby electually preventing all tendency torattle. Owing to the inclination of the cam-shaped face of theprojection and the inclination of the cam-face hook when the two areturned into locked position, an upward pressure will be exerted on theupper sash and a downward one on the lower, thereby still furtherpreventing tendency to rattle.

ICO

Where it is desired to cheapen the cost o`f the devices, I preferablymake the c0veringplate and base-plate A and A separate, as shown in Fig.5, and form a groove F in the base-plate for the reception of `the sidepieces n, the parts being held rigidly in this position by means ofthepivot-rivet C, which in this instance passes way through both thecovering-plate and base-plate and is headed up on the outside.

The construction, it will be observed, is very simple and the lockingmechanism effective and easily released, there being no parts to beknocked or jolted out of place should the attempt be made to release thelock from the outside of the window, and at the same time the device iscomposed of few parts, each in itself a casting of the simplestcharacter, and in assembling the parts there is no difficult titting,such as would require the employment of highly-skilled labor to insure aperfect operation and co-operation of the parts `llaving thus describedmy invention, what I claim as new isl. In a sash lock, the combinationwith the housing, of the hook pivoted therein gradually increasing inthickness toward its base, and having a cam shaped inner face,corrugated outer face and inclined upper surface, the spring pressedcorrugated locking cam pivotally mounted in the easing and cooperatingwith the corrugated face of the hook, independent handles for said camand hook, and a cooperating member having an undercut cam likeprojection thereon, with which the hook engages, substan 'ally as andfor the purpose set forth.

2. In a sash lock, the combination with the base plate, the independentcovering plate having the downwardly extending sides fitting intogrooves in the base plate, a cam hook pivoted in the housing formed bythe base and covering plates, a pivot passing through the base andcovering plates and through the hook for uniting said parts and acooperating member having a hook-like projection with which the pivothook engages; substantially as described.

SIGEL llAlNKEL. Witnesses:

L. E. EMMoNs, L. E. EMMoNs, Jr.

